Home / 29,021.86-40,035.42-18,956.20

Finding the Fourth Proportional to 29,021.86, 40,035.42 and 18,956.20

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Solution

The fourth proportional to 29,021.86, 40,035.42 and 18,956.20 is: 26,149.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,021.86 : 40,035.42 = 18,956.20 : x
  2. Step 2: Convert to fraction form
    29,021.86/40,035.42 = 18,956.20/x
  3. Step 3: Cross multiply
    29,021.86x = 40,035.42 × 18,956.20
  4. Step 4: Simplify right side
    29,021.86x = 758,919,428.60
  5. Step 5: Solve for x
    x = 758,919,428.60/29,021.86
  6. Step 6: Final answer
    x = 26,149.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.